Frisbee?

A Texan took a picture of the sky, unknowingly getting a shot of a neon-ish UFO. He or she speculated it could be a frisbee, but concludes that doesn't quite fit the bill.

Lens artifact? Bug? Frisbee? Let us know if you saw something similar, though I'm not sure where this sighting - from April 15th - occurred.

Here's the full description:

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On 4/15/12, Sunday morning, I was taking pictures of the cold front as it blew in because when it started, the clouds were verticle. Tonight, I noticed this object in one of the pictures that I took that morning. This is the only picture with the yellow object that I never saw with my own eye. I tend to think that it is a frisbee, but even at the angle that it is , you should see some roundness to it. So it makes no sense to me. Can someone figure out what it is or how big it may be? The yellow object is kind of centered in the sky.